36121525 has 18 divisors (see below), whose sum is σ = 49236866. Its totient is φ = 26268000.

The previous prime is 36121499. The next prime is 36121529. The reversal of 36121525 is 52512163.

It can be written as a sum of positive squares in 3 ways, for example, as 576081 + 35545444 = 759^2 + 5962^2 .

It is not a de Polignac number, because 36121525 - 2⁵ = 36121493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36121525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36121529) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2946 + ... + 8995.

Almost surely, 2^36121525 is an apocalyptic number.

It is an amenable number.

36121525 is a deficient number, since it is larger than the sum of its proper divisors (13115341).

36121525 is a wasteful number, since it uses less digits than its factorization.

36121525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11973 (or 11957 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 36121525 is about 6010.1185512434. The cubic root of 36121525 is about 330.5638508486.

Adding to 36121525 its reverse (52512163), we get a palindrome (88633688).

The spelling of 36121525 in words is "thirty-six million, one hundred twenty-one thousand, five hundred twenty-five".